Was messing around with Yet Another Squad Builder and I found out that it doesn't validate the permalinks. When you're building a squad in the editor it'll make sure you're building one within the rules, but it'll quite happily let you equip or use whatever you want if you modify the permalink url.
This allows you to move ships between factions for scenario building or using Rebel Epics as proxies when before this prevented you from using squad builders.
Simply create a Rebel squad, load it up with the Epic ships you want, press "Get Permalink", change "Rebel Alliance" to "Galactic Empire," go to that link and there you go: instant Rebel Epics in the Imperial faction, complete with all the Squad Builder's functionality.
Edited by TIE Pilot